5205666650516 has 6 divisors (see below), whose sum is σ = 9109916638410. Its totient is φ = 2602833325256.

The previous prime is 5205666650507. The next prime is 5205666650539. The reversal of 5205666650516 is 6150566665025.

It can be written as a sum of positive squares in only one way, i.e., 3737803555600 + 1467863094916 = 1933340^2 + 1211554^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 650708331311 + ... + 650708331318.

It is an arithmetic number, because the mean of its divisors is an integer number (1518319439735).

Almost surely, 2^{5205666650516} is an apocalyptic number.

It is an amenable number.

5205666650516 is a deficient number, since it is larger than the sum of its proper divisors (3904249987894).

5205666650516 is a wasteful number, since it uses less digits than its factorization.

5205666650516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1301416662633 (or 1301416662631 counting only the distinct ones).

The product of its (nonzero) digits is 9720000, while the sum is 53.

The spelling of 5205666650516 in words is "five trillion, two hundred five billion, six hundred sixty-six million, six hundred fifty thousand, five hundred sixteen".